Ummm...what is a 404?? Why am I seeing this?!
Simply put, a 404 means there is something wrong with the URL you're trying to access. Most of the time, it's a simple typing mistake. A quick review of the URL should reveal the source of the issue.
If you aren't sure what the URL is supposed to look like, reach out to your manager or IT team. Either should be able to help you determine the proper URL and get you to the page you're looking for.